Police Commissioner Bill Bratton has a long way to go to comply with Mayor Bill de Blasio’s demands that the number of black cops in the NYPD reflects the city’s overall racial makeup.

The two Police Academy graduating classes since Bratton took office in January 2014 were just 10 percent African-American — far below the 16 percent figure for black cops currently on the force.

De Blasio on Monday announced that 1,300 more cops would be hired after months of insisting there would be no cash for more officers in this year’s city budget.

And the next day he vowed that the NYPD would reflect the city’s population, which is about 23 percent African-American.

City Hall on Wednesday would not spell out how Hizzoner hoped to achieve that lofty goal.

But a spokesman for the NYPD said the department will be expanding current outreach efforts and launching new ones as well, including an advertising blitz.

“It’ll be on subways, on billboards, in schools, on our vehicles. We have recruitment cars that are going to go around, a recruitment van. And we’re going to put it on street corners, with cops sitting there on street corners,” the spokesman said.

“We’re going into diverse communities and saying, ‘We need your help to do this.’ That’s not necessarily new in terms of plan. It’s new in terms of scope.”

But so far, Bratton has failed to match the numbers his predecessor Ray Kelly produced.

The last three graduating classes on the ex-commissioner’s watch, in January and July 2013 and January 2014, included 13, 9 and 13 percent African-Americans, respectively.

The highest percentage during Kelly’s tenure came in 2003, when 18 percent of the academy’s graduates were black.

Both commissioners launched a variety of efforts to recruit more minorities, including holding recruitment events at Harlem’s Apollo Theater and other venues in minority neighborhoods across the city.

Other steps include tracking candidates who passed the police exam but who later moved and could not be located, and working with colleges to help black school safety agents earn the two years of higher education credit they need to qualify for the NYPD.